Thunderstorms and heavy rainfall are forecasted to occur starting from 25 November 2025, 20:10 WIB in parts of Sumatera Utara especially in: Adian Koting, Andam Dewi, Barus, Barus Utara, Bawolato, Idanogawo, Kolang, Manduamas, Parmonangan, Pasaribu Tobing, Sirandorung, Sogae'Adu, Sorkam, Sorkam Barat, Sosor Gadong, Ulugawo. These conditions may lead to reduced visibility, strong winds, and localized flooding. The public is strongly advised to remain vigilant during this period, limit outdoor activities, and take all necessary precautions to ensure safety. Conditions are expected to gradually improve by 25 November 2025, 23:10 WIB.